| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ian Rogers | 5048 | 40.90% | 70 | 20.17% |
| Jiri Olsa | 2465 | 19.97% | 64 | 18.44% |
| Wang Nan | 822 | 6.66% | 17 | 4.90% |
| Adrian Hunter | 497 | 4.03% | 22 | 6.34% |
| Arnaldo Carvalho de Melo | 461 | 3.74% | 42 | 12.10% |
| Andi Kleen | 445 | 3.61% | 13 | 3.75% |
| Ingo Molnar | 359 | 2.91% | 16 | 4.61% |
| He Kuang | 325 | 2.63% | 3 | 0.86% |
| Frédéric Weisbecker | 269 | 2.18% | 5 | 1.44% |
| Jin Yao | 231 | 1.87% | 12 | 3.46% |
| Yan Zheng | 155 | 1.26% | 3 | 0.86% |
| Kan Liang | 144 | 1.17% | 4 | 1.15% |
| Paul Mackerras | 129 | 1.05% | 1 | 0.29% |
| Peter Zijlstra | 108 | 0.88% | 6 | 1.73% |
| Mathieu J. Poirier | 94 | 0.76% | 2 | 0.58% |
| Namhyung Kim | 92 | 0.75% | 11 | 3.17% |
| Stéphane Eranian | 85 | 0.69% | 5 | 1.44% |
| Jason Baron | 76 | 0.62% | 1 | 0.29% |
| Joerg Roedel | 60 | 0.49% | 1 | 0.29% |
| Jaswinder Singh Rajput | 55 | 0.45% | 4 | 1.15% |
| John Garry | 55 | 0.45% | 2 | 0.58% |
| Rob Herring | 43 | 0.35% | 2 | 0.58% |
| Li Zefan | 37 | 0.30% | 1 | 0.29% |
| Leo Yan | 33 | 0.27% | 1 | 0.29% |
| Michael Ellerman | 31 | 0.25% | 1 | 0.29% |
| David Ahern | 21 | 0.17% | 3 | 0.86% |
| Masami Hiramatsu | 20 | 0.16% | 2 | 0.58% |
| Song Liu | 20 | 0.16% | 1 | 0.29% |
| Jacob Shin | 17 | 0.14% | 1 | 0.29% |
| Matt Fleming | 17 | 0.14% | 2 | 0.58% |
| Mark Rutland | 16 | 0.13% | 1 | 0.29% |
| Jack Henschel | 13 | 0.11% | 1 | 0.29% |
| Stanislav Fomichev | 12 | 0.10% | 2 | 0.58% |
| Robert Richter | 11 | 0.09% | 2 | 0.58% |
| Anton Blanchard | 10 | 0.08% | 1 | 0.29% |
| Taeung Song | 9 | 0.07% | 2 | 0.58% |
| Florian Fischer | 8 | 0.06% | 1 | 0.29% |
| Cody P Schafer | 6 | 0.05% | 1 | 0.29% |
| Jovi Zhang | 6 | 0.05% | 1 | 0.29% |
| Ravi Bangoria | 6 | 0.05% | 1 | 0.29% |
| Sukadev Bhattiprolu | 5 | 0.04% | 1 | 0.29% |
| Thomas Gleixner | 4 | 0.03% | 1 | 0.29% |
| Liming Wang | 4 | 0.03% | 1 | 0.29% |
| Agustin Vega-Frias | 3 | 0.02% | 2 | 0.58% |
| Eric Dumazet | 2 | 0.02% | 1 | 0.29% |
| Clark Williams | 2 | 0.02% | 1 | 0.29% |
| Fengguang Wu | 2 | 0.02% | 1 | 0.29% |
| Adam Buchbinder | 1 | 0.01% | 1 | 0.29% |
| Irina Tirdea | 1 | 0.01% | 1 | 0.29% |
| Ulrich Drepper | 1 | 0.01% | 1 | 0.29% |
| Yang Jihong | 1 | 0.01% | 1 | 0.29% |
| Lin Ming | 1 | 0.01% | 1 | 0.29% |
| Greg Kroah-Hartman | 1 | 0.01% | 1 | 0.29% |
| David Howells | 1 | 0.01% | 1 | 0.29% |
| Josh Poimboeuf | 1 | 0.01% | 1 | 0.29% |
| Total | 12341 | 347 |
// SPDX-License-Identifier: GPL-2.0 #include <linux/hw_breakpoint.h> #include <linux/err.h> #include <linux/list_sort.h> #include <linux/zalloc.h> #include <dirent.h> #include <errno.h> #include <sys/ioctl.h> #include <sys/param.h> #include "term.h" #include "evlist.h" #include "evsel.h" #include <subcmd/parse-options.h> #include "parse-events.h" #include "string2.h" #include "strbuf.h" #include "debug.h" #include <api/fs/tracing_path.h> #include <perf/cpumap.h> #include <util/parse-events-bison.h> #include <util/parse-events-flex.h> #include "pmu.h" #include "pmus.h" #include "asm/bug.h" #include "util/parse-branch-options.h" #include "util/evsel_config.h" #include "util/event.h" #include "util/bpf-filter.h" #include "util/util.h" #include "tracepoint.h" #define MAX_NAME_LEN 100 #ifdef PARSER_DEBUG extern int parse_events_debug; #endif static int get_config_terms(struct parse_events_terms *head_config, struct list_head *head_terms); static int parse_events_terms__copy(const struct parse_events_terms *src, struct parse_events_terms *dest); struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { [PERF_COUNT_HW_CPU_CYCLES] = { .symbol = "cpu-cycles", .alias = "cycles", }, [PERF_COUNT_HW_INSTRUCTIONS] = { .symbol = "instructions", .alias = "", }, [PERF_COUNT_HW_CACHE_REFERENCES] = { .symbol = "cache-references", .alias = "", }, [PERF_COUNT_HW_CACHE_MISSES] = { .symbol = "cache-misses", .alias = "", }, [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { .symbol = "branch-instructions", .alias = "branches", }, [PERF_COUNT_HW_BRANCH_MISSES] = { .symbol = "branch-misses", .alias = "", }, [PERF_COUNT_HW_BUS_CYCLES] = { .symbol = "bus-cycles", .alias = "", }, [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { .symbol = "stalled-cycles-frontend", .alias = "idle-cycles-frontend", }, [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { .symbol = "stalled-cycles-backend", .alias = "idle-cycles-backend", }, [PERF_COUNT_HW_REF_CPU_CYCLES] = { .symbol = "ref-cycles", .alias = "", }, }; struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { [PERF_COUNT_SW_CPU_CLOCK] = { .symbol = "cpu-clock", .alias = "", }, [PERF_COUNT_SW_TASK_CLOCK] = { .symbol = "task-clock", .alias = "", }, [PERF_COUNT_SW_PAGE_FAULTS] = { .symbol = "page-faults", .alias = "faults", }, [PERF_COUNT_SW_CONTEXT_SWITCHES] = { .symbol = "context-switches", .alias = "cs", }, [PERF_COUNT_SW_CPU_MIGRATIONS] = { .symbol = "cpu-migrations", .alias = "migrations", }, [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { .symbol = "minor-faults", .alias = "", }, [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { .symbol = "major-faults", .alias = "", }, [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { .symbol = "alignment-faults", .alias = "", }, [PERF_COUNT_SW_EMULATION_FAULTS] = { .symbol = "emulation-faults", .alias = "", }, [PERF_COUNT_SW_DUMMY] = { .symbol = "dummy", .alias = "", }, [PERF_COUNT_SW_BPF_OUTPUT] = { .symbol = "bpf-output", .alias = "", }, [PERF_COUNT_SW_CGROUP_SWITCHES] = { .symbol = "cgroup-switches", .alias = "", }, }; const char *event_type(int type) { switch (type) { case PERF_TYPE_HARDWARE: return "hardware"; case PERF_TYPE_SOFTWARE: return "software"; case PERF_TYPE_TRACEPOINT: return "tracepoint"; case PERF_TYPE_HW_CACHE: return "hardware-cache"; default: break; } return "unknown"; } static char *get_config_str(struct parse_events_terms *head_terms, enum parse_events__term_type type_term) { struct parse_events_term *term; if (!head_terms) return NULL; list_for_each_entry(term, &head_terms->terms, list) if (term->type_term == type_term) return term->val.str; return NULL; } static char *get_config_metric_id(struct parse_events_terms *head_terms) { return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_METRIC_ID); } static char *get_config_name(struct parse_events_terms *head_terms) { return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME); } /** * fix_raw - For each raw term see if there is an event (aka alias) in pmu that * matches the raw's string value. If the string value matches an * event then change the term to be an event, if not then change it to * be a config term. For example, "read" may be an event of the PMU or * a raw hex encoding of 0xead. The fix-up is done late so the PMU of * the event can be determined and we don't need to scan all PMUs * ahead-of-time. * @config_terms: the list of terms that may contain a raw term. * @pmu: the PMU to scan for events from. */ static void fix_raw(struct parse_events_terms *config_terms, struct perf_pmu *pmu) { struct parse_events_term *term; list_for_each_entry(term, &config_terms->terms, list) { u64 num; if (term->type_term != PARSE_EVENTS__TERM_TYPE_RAW) continue; if (perf_pmu__have_event(pmu, term->val.str)) { zfree(&term->config); term->config = term->val.str; term->type_val = PARSE_EVENTS__TERM_TYPE_NUM; term->type_term = PARSE_EVENTS__TERM_TYPE_USER; term->val.num = 1; term->no_value = true; continue; } zfree(&term->config); term->config = strdup("config"); errno = 0; num = strtoull(term->val.str + 1, NULL, 16); assert(errno == 0); free(term->val.str); term->type_val = PARSE_EVENTS__TERM_TYPE_NUM; term->type_term = PARSE_EVENTS__TERM_TYPE_CONFIG; term->val.num = num; term->no_value = false; } } static struct evsel * __add_event(struct list_head *list, int *idx, struct perf_event_attr *attr, bool init_attr, const char *name, const char *metric_id, struct perf_pmu *pmu, struct list_head *config_terms, bool auto_merge_stats, const char *cpu_list) { struct evsel *evsel; struct perf_cpu_map *cpus = pmu ? perf_cpu_map__get(pmu->cpus) : cpu_list ? perf_cpu_map__new(cpu_list) : NULL; if (pmu) perf_pmu__warn_invalid_formats(pmu); if (pmu && (attr->type == PERF_TYPE_RAW || attr->type >= PERF_TYPE_MAX)) { perf_pmu__warn_invalid_config(pmu, attr->config, name, PERF_PMU_FORMAT_VALUE_CONFIG, "config"); perf_pmu__warn_invalid_config(pmu, attr->config1, name, PERF_PMU_FORMAT_VALUE_CONFIG1, "config1"); perf_pmu__warn_invalid_config(pmu, attr->config2, name, PERF_PMU_FORMAT_VALUE_CONFIG2, "config2"); perf_pmu__warn_invalid_config(pmu, attr->config3, name, PERF_PMU_FORMAT_VALUE_CONFIG3, "config3"); } if (init_attr) event_attr_init(attr); evsel = evsel__new_idx(attr, *idx); if (!evsel) { perf_cpu_map__put(cpus); return NULL; } (*idx)++; evsel->core.cpus = cpus; evsel->core.own_cpus = perf_cpu_map__get(cpus); evsel->core.requires_cpu = pmu ? pmu->is_uncore : false; evsel->core.is_pmu_core = pmu ? pmu->is_core : false; evsel->auto_merge_stats = auto_merge_stats; evsel->pmu = pmu; evsel->pmu_name = pmu ? strdup(pmu->name) : NULL; if (name) evsel->name = strdup(name); if (metric_id) evsel->metric_id = strdup(metric_id); if (config_terms) list_splice_init(config_terms, &evsel->config_terms); if (list) list_add_tail(&evsel->core.node, list); return evsel; } struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr, const char *name, const char *metric_id, struct perf_pmu *pmu) { return __add_event(/*list=*/NULL, &idx, attr, /*init_attr=*/false, name, metric_id, pmu, /*config_terms=*/NULL, /*auto_merge_stats=*/false, /*cpu_list=*/NULL); } static int add_event(struct list_head *list, int *idx, struct perf_event_attr *attr, const char *name, const char *metric_id, struct list_head *config_terms) { return __add_event(list, idx, attr, /*init_attr*/true, name, metric_id, /*pmu=*/NULL, config_terms, /*auto_merge_stats=*/false, /*cpu_list=*/NULL) ? 0 : -ENOMEM; } static int add_event_tool(struct list_head *list, int *idx, enum perf_tool_event tool_event) { struct evsel *evsel; struct perf_event_attr attr = { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_DUMMY, }; evsel = __add_event(list, idx, &attr, /*init_attr=*/true, /*name=*/NULL, /*metric_id=*/NULL, /*pmu=*/NULL, /*config_terms=*/NULL, /*auto_merge_stats=*/false, /*cpu_list=*/"0"); if (!evsel) return -ENOMEM; evsel->tool_event = tool_event; if (tool_event == PERF_TOOL_DURATION_TIME || tool_event == PERF_TOOL_USER_TIME || tool_event == PERF_TOOL_SYSTEM_TIME) { free((char *)evsel->unit); evsel->unit = strdup("ns"); } return 0; } /** * parse_aliases - search names for entries beginning or equalling str ignoring * case. If mutliple entries in names match str then the longest * is chosen. * @str: The needle to look for. * @names: The haystack to search. * @size: The size of the haystack. * @longest: Out argument giving the length of the matching entry. */ static int parse_aliases(const char *str, const char *const names[][EVSEL__MAX_ALIASES], int size, int *longest) { *longest = -1; for (int i = 0; i < size; i++) { for (int j = 0; j < EVSEL__MAX_ALIASES && names[i][j]; j++) { int n = strlen(names[i][j]); if (n > *longest && !strncasecmp(str, names[i][j], n)) *longest = n; } if (*longest > 0) return i; } return -1; } typedef int config_term_func_t(struct perf_event_attr *attr, struct parse_events_term *term, struct parse_events_error *err); static int config_term_common(struct perf_event_attr *attr, struct parse_events_term *term, struct parse_events_error *err); static int config_attr(struct perf_event_attr *attr, struct parse_events_terms *head, struct parse_events_error *err, config_term_func_t config_term); /** * parse_events__decode_legacy_cache - Search name for the legacy cache event * name composed of 1, 2 or 3 hyphen * separated sections. The first section is * the cache type while the others are the * optional op and optional result. To make * life hard the names in the table also * contain hyphens and the longest name * should always be selected. */ int parse_events__decode_legacy_cache(const char *name, int extended_pmu_type, __u64 *config) { int len, cache_type = -1, cache_op = -1, cache_result = -1; const char *name_end = &name[strlen(name) + 1]; const char *str = name; cache_type = parse_aliases(str, evsel__hw_cache, PERF_COUNT_HW_CACHE_MAX, &len); if (cache_type == -1) return -EINVAL; str += len + 1; if (str < name_end) { cache_op = parse_aliases(str, evsel__hw_cache_op, PERF_COUNT_HW_CACHE_OP_MAX, &len); if (cache_op >= 0) { if (!evsel__is_cache_op_valid(cache_type, cache_op)) return -EINVAL; str += len + 1; } else { cache_result = parse_aliases(str, evsel__hw_cache_result, PERF_COUNT_HW_CACHE_RESULT_MAX, &len); if (cache_result >= 0) str += len + 1; } } if (str < name_end) { if (cache_op < 0) { cache_op = parse_aliases(str, evsel__hw_cache_op, PERF_COUNT_HW_CACHE_OP_MAX, &len); if (cache_op >= 0) { if (!evsel__is_cache_op_valid(cache_type, cache_op)) return -EINVAL; } } else if (cache_result < 0) { cache_result = parse_aliases(str, evsel__hw_cache_result, PERF_COUNT_HW_CACHE_RESULT_MAX, &len); } } /* * Fall back to reads: */ if (cache_op == -1) cache_op = PERF_COUNT_HW_CACHE_OP_READ; /* * Fall back to accesses: */ if (cache_result == -1) cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; *config = cache_type | (cache_op << 8) | (cache_result << 16); if (perf_pmus__supports_extended_type()) *config |= (__u64)extended_pmu_type << PERF_PMU_TYPE_SHIFT; return 0; } /** * parse_events__filter_pmu - returns false if a wildcard PMU should be * considered, true if it should be filtered. */ bool parse_events__filter_pmu(const struct parse_events_state *parse_state, const struct perf_pmu *pmu) { if (parse_state->pmu_filter == NULL) return false; return strcmp(parse_state->pmu_filter, pmu->name) != 0; } int parse_events_add_cache(struct list_head *list, int *idx, const char *name, struct parse_events_state *parse_state, struct parse_events_terms *head_config) { struct perf_pmu *pmu = NULL; bool found_supported = false; const char *config_name = get_config_name(head_config); const char *metric_id = get_config_metric_id(head_config); /* Legacy cache events are only supported by core PMUs. */ while ((pmu = perf_pmus__scan_core(pmu)) != NULL) { LIST_HEAD(config_terms); struct perf_event_attr attr; int ret; if (parse_events__filter_pmu(parse_state, pmu)) continue; memset(&attr, 0, sizeof(attr)); attr.type = PERF_TYPE_HW_CACHE; ret = parse_events__decode_legacy_cache(name, pmu->type, &attr.config); if (ret) return ret; found_supported = true; if (head_config) { if (config_attr(&attr, head_config, parse_state->error, config_term_common)) return -EINVAL; if (get_config_terms(head_config, &config_terms)) return -ENOMEM; } if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name, metric_id, pmu, &config_terms, /*auto_merge_stats=*/false, /*cpu_list=*/NULL) == NULL) return -ENOMEM; free_config_terms(&config_terms); } return found_supported ? 0 : -EINVAL; } #ifdef HAVE_LIBTRACEEVENT static void tracepoint_error(struct parse_events_error *e, int err, const char *sys, const char *name, int column) { const char *str; char help[BUFSIZ]; if (!e) return; /* * We get error directly from syscall errno ( > 0), * or from encoded pointer's error ( < 0). */ err = abs(err); switch (err) { case EACCES: str = "can't access trace events"; break; case ENOENT: str = "unknown tracepoint"; break; default: str = "failed to add tracepoint"; break; } tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name); parse_events_error__handle(e, column, strdup(str), strdup(help)); } static int add_tracepoint(struct list_head *list, int *idx, const char *sys_name, const char *evt_name, struct parse_events_error *err, struct parse_events_terms *head_config, void *loc_) { YYLTYPE *loc = loc_; struct evsel *evsel = evsel__newtp_idx(sys_name, evt_name, (*idx)++); if (IS_ERR(evsel)) { tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name, loc->first_column); return PTR_ERR(evsel); } if (head_config) { LIST_HEAD(config_terms); if (get_config_terms(head_config, &config_terms)) return -ENOMEM; list_splice(&config_terms, &evsel->config_terms); } list_add_tail(&evsel->core.node, list); return 0; } static int add_tracepoint_multi_event(struct list_head *list, int *idx, const char *sys_name, const char *evt_name, struct parse_events_error *err, struct parse_events_terms *head_config, YYLTYPE *loc) { char *evt_path; struct dirent *evt_ent; DIR *evt_dir; int ret = 0, found = 0; evt_path = get_events_file(sys_name); if (!evt_path) { tracepoint_error(err, errno, sys_name, evt_name, loc->first_column); return -1; } evt_dir = opendir(evt_path); if (!evt_dir) { put_events_file(evt_path); tracepoint_error(err, errno, sys_name, evt_name, loc->first_column); return -1; } while (!ret && (evt_ent = readdir(evt_dir))) { if (!strcmp(evt_ent->d_name, ".") || !strcmp(evt_ent->d_name, "..") || !strcmp(evt_ent->d_name, "enable") || !strcmp(evt_ent->d_name, "filter")) continue; if (!strglobmatch(evt_ent->d_name, evt_name)) continue; found++; ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name, err, head_config, loc); } if (!found) { tracepoint_error(err, ENOENT, sys_name, evt_name, loc->first_column); ret = -1; } put_events_file(evt_path); closedir(evt_dir); return ret; } static int add_tracepoint_event(struct list_head *list, int *idx, const char *sys_name, const char *evt_name, struct parse_events_error *err, struct parse_events_terms *head_config, YYLTYPE *loc) { return strpbrk(evt_name, "*?") ? add_tracepoint_multi_event(list, idx, sys_name, evt_name, err, head_config, loc) : add_tracepoint(list, idx, sys_name, evt_name, err, head_config, loc); } static int add_tracepoint_multi_sys(struct list_head *list, int *idx, const char *sys_name, const char *evt_name, struct parse_events_error *err, struct parse_events_terms *head_config, YYLTYPE *loc) { struct dirent *events_ent; DIR *events_dir; int ret = 0; events_dir = tracing_events__opendir(); if (!events_dir) { tracepoint_error(err, errno, sys_name, evt_name, loc->first_column); return -1; } while (!ret && (events_ent = readdir(events_dir))) { if (!strcmp(events_ent->d_name, ".") || !strcmp(events_ent->d_name, "..") || !strcmp(events_ent->d_name, "enable") || !strcmp(events_ent->d_name, "header_event") || !strcmp(events_ent->d_name, "header_page")) continue; if (!strglobmatch(events_ent->d_name, sys_name)) continue; ret = add_tracepoint_event(list, idx, events_ent->d_name, evt_name, err, head_config, loc); } closedir(events_dir); return ret; } #endif /* HAVE_LIBTRACEEVENT */ static int parse_breakpoint_type(const char *type, struct perf_event_attr *attr) { int i; for (i = 0; i < 3; i++) { if (!type || !type[i]) break; #define CHECK_SET_TYPE(bit) \ do { \ if (attr->bp_type & bit) \ return -EINVAL; \ else \ attr->bp_type |= bit; \ } while (0) switch (type[i]) { case 'r': CHECK_SET_TYPE(HW_BREAKPOINT_R); break; case 'w': CHECK_SET_TYPE(HW_BREAKPOINT_W); break; case 'x': CHECK_SET_TYPE(HW_BREAKPOINT_X); break; default: return -EINVAL; } } #undef CHECK_SET_TYPE if (!attr->bp_type) /* Default */ attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; return 0; } int parse_events_add_breakpoint(struct parse_events_state *parse_state, struct list_head *list, u64 addr, char *type, u64 len, struct parse_events_terms *head_config) { struct perf_event_attr attr; LIST_HEAD(config_terms); const char *name; memset(&attr, 0, sizeof(attr)); attr.bp_addr = addr; if (parse_breakpoint_type(type, &attr)) return -EINVAL; /* Provide some defaults if len is not specified */ if (!len) { if (attr.bp_type == HW_BREAKPOINT_X) len = sizeof(long); else len = HW_BREAKPOINT_LEN_4; } attr.bp_len = len; attr.type = PERF_TYPE_BREAKPOINT; attr.sample_period = 1; if (head_config) { if (config_attr(&attr, head_config, parse_state->error, config_term_common)) return -EINVAL; if (get_config_terms(head_config, &config_terms)) return -ENOMEM; } name = get_config_name(head_config); return add_event(list, &parse_state->idx, &attr, name, /*mertic_id=*/NULL, &config_terms); } static int check_type_val(struct parse_events_term *term, struct parse_events_error *err, enum parse_events__term_val_type type) { if (type == term->type_val) return 0; if (err) { parse_events_error__handle(err, term->err_val, type == PARSE_EVENTS__TERM_TYPE_NUM ? strdup("expected numeric value") : strdup("expected string value"), NULL); } return -EINVAL; } static bool config_term_shrinked; static const char *config_term_name(enum parse_events__term_type term_type) { /* * Update according to parse-events.l */ static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = { [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>", [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config", [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1", [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2", [PARSE_EVENTS__TERM_TYPE_CONFIG3] = "config3", [PARSE_EVENTS__TERM_TYPE_NAME] = "name", [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period", [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq", [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type", [PARSE_EVENTS__TERM_TYPE_TIME] = "time", [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph", [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size", [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit", [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit", [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack", [PARSE_EVENTS__TERM_TYPE_MAX_EVENTS] = "nr", [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite", [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite", [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config", [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore", [PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output", [PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size", [PARSE_EVENTS__TERM_TYPE_METRIC_ID] = "metric-id", [PARSE_EVENTS__TERM_TYPE_RAW] = "raw", [PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE] = "legacy-cache", [PARSE_EVENTS__TERM_TYPE_HARDWARE] = "hardware", }; if ((unsigned int)term_type >= __PARSE_EVENTS__TERM_TYPE_NR) return "unknown term"; return config_term_names[term_type]; } static bool config_term_avail(enum parse_events__term_type term_type, struct parse_events_error *err) { char *err_str; if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) { parse_events_error__handle(err, -1, strdup("Invalid term_type"), NULL); return false; } if (!config_term_shrinked) return true; switch (term_type) { case PARSE_EVENTS__TERM_TYPE_CONFIG: case PARSE_EVENTS__TERM_TYPE_CONFIG1: case PARSE_EVENTS__TERM_TYPE_CONFIG2: case PARSE_EVENTS__TERM_TYPE_CONFIG3: case PARSE_EVENTS__TERM_TYPE_NAME: case PARSE_EVENTS__TERM_TYPE_METRIC_ID: case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: case PARSE_EVENTS__TERM_TYPE_PERCORE: return true; case PARSE_EVENTS__TERM_TYPE_USER: case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: case PARSE_EVENTS__TERM_TYPE_TIME: case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: case PARSE_EVENTS__TERM_TYPE_STACKSIZE: case PARSE_EVENTS__TERM_TYPE_NOINHERIT: case PARSE_EVENTS__TERM_TYPE_INHERIT: case PARSE_EVENTS__TERM_TYPE_MAX_STACK: case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: case PARSE_EVENTS__TERM_TYPE_OVERWRITE: case PARSE_EVENTS__TERM_TYPE_DRV_CFG: case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: case PARSE_EVENTS__TERM_TYPE_RAW: case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE: case PARSE_EVENTS__TERM_TYPE_HARDWARE: default: if (!err) return false; /* term_type is validated so indexing is safe */ if (asprintf(&err_str, "'%s' is not usable in 'perf stat'", config_term_name(term_type)) >= 0) parse_events_error__handle(err, -1, err_str, NULL); return false; } } void parse_events__shrink_config_terms(void) { config_term_shrinked = true; } static int config_term_common(struct perf_event_attr *attr, struct parse_events_term *term, struct parse_events_error *err) { #define CHECK_TYPE_VAL(type) \ do { \ if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \ return -EINVAL; \ } while (0) switch (term->type_term) { case PARSE_EVENTS__TERM_TYPE_CONFIG: CHECK_TYPE_VAL(NUM); attr->config = term->val.num; break; case PARSE_EVENTS__TERM_TYPE_CONFIG1: CHECK_TYPE_VAL(NUM); attr->config1 = term->val.num; break; case PARSE_EVENTS__TERM_TYPE_CONFIG2: CHECK_TYPE_VAL(NUM); attr->config2 = term->val.num; break; case PARSE_EVENTS__TERM_TYPE_CONFIG3: CHECK_TYPE_VAL(NUM); attr->config3 = term->val.num; break; case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: CHECK_TYPE_VAL(STR); if (strcmp(term->val.str, "no") && parse_branch_str(term->val.str, &attr->branch_sample_type)) { parse_events_error__handle(err, term->err_val, strdup("invalid branch sample type"), NULL); return -EINVAL; } break; case PARSE_EVENTS__TERM_TYPE_TIME: CHECK_TYPE_VAL(NUM); if (term->val.num > 1) { parse_events_error__handle(err, term->err_val, strdup("expected 0 or 1"), NULL); return -EINVAL; } break; case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: CHECK_TYPE_VAL(STR); break; case PARSE_EVENTS__TERM_TYPE_STACKSIZE: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_INHERIT: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_NOINHERIT: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_OVERWRITE: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_NAME: CHECK_TYPE_VAL(STR); break; case PARSE_EVENTS__TERM_TYPE_METRIC_ID: CHECK_TYPE_VAL(STR); break; case PARSE_EVENTS__TERM_TYPE_RAW: CHECK_TYPE_VAL(STR); break; case PARSE_EVENTS__TERM_TYPE_MAX_STACK: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_PERCORE: CHECK_TYPE_VAL(NUM); if ((unsigned int)term->val.num > 1) { parse_events_error__handle(err, term->err_val, strdup("expected 0 or 1"), NULL); return -EINVAL; } break; case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: CHECK_TYPE_VAL(NUM); break; case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: CHECK_TYPE_VAL(NUM); if (term->val.num > UINT_MAX) { parse_events_error__handle(err, term->err_val, strdup("too big"), NULL); return -EINVAL; } break; case PARSE_EVENTS__TERM_TYPE_DRV_CFG: case PARSE_EVENTS__TERM_TYPE_USER: case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE: case PARSE_EVENTS__TERM_TYPE_HARDWARE: default: parse_events_error__handle(err, term->err_term, strdup(config_term_name(term->type_term)), parse_events_formats_error_string(NULL)); return -EINVAL; } /* * Check term availability after basic checking so * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered. * * If check availability at the entry of this function, * user will see "'<sysfs term>' is not usable in 'perf stat'" * if an invalid config term is provided for legacy events * (for example, instructions/badterm/...), which is confusing. */ if (!config_term_avail(term->type_term, err)) return -EINVAL; return 0; #undef CHECK_TYPE_VAL } static int config_term_pmu(struct perf_event_attr *attr, struct parse_events_term *term, struct parse_events_error *err) { if (term->type_term == PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE) { struct perf_pmu *pmu = perf_pmus__find_by_type(attr->type); if (!pmu) { char *err_str; if (asprintf(&err_str, "Failed to find PMU for type %d", attr->type) >= 0) parse_events_error__handle(err, term->err_term, err_str, /*help=*/NULL); return -EINVAL; } /* * Rewrite the PMU event to a legacy cache one unless the PMU * doesn't support legacy cache events or the event is present * within the PMU. */ if (perf_pmu__supports_legacy_cache(pmu) && !perf_pmu__have_event(pmu, term->config)) { attr->type = PERF_TYPE_HW_CACHE; return parse_events__decode_legacy_cache(term->config, pmu->type, &attr->config); } else { term->type_term = PARSE_EVENTS__TERM_TYPE_USER; term->no_value = true; } } if (term->type_term == PARSE_EVENTS__TERM_TYPE_HARDWARE) { struct perf_pmu *pmu = perf_pmus__find_by_type(attr->type); if (!pmu) { char *err_str; if (asprintf(&err_str, "Failed to find PMU for type %d", attr->type) >= 0) parse_events_error__handle(err, term->err_term, err_str, /*help=*/NULL); return -EINVAL; } /* * If the PMU has a sysfs or json event prefer it over * legacy. ARM requires this. */ if (perf_pmu__have_event(pmu, term->config)) { term->type_term = PARSE_EVENTS__TERM_TYPE_USER; term->no_value = true; } else { attr->type = PERF_TYPE_HARDWARE; attr->config = term->val.num; if (perf_pmus__supports_extended_type()) attr->config |= (__u64)pmu->type << PERF_PMU_TYPE_SHIFT; } return 0; } if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER || term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG) { /* * Always succeed for sysfs terms, as we dont know * at this point what type they need to have. */ return 0; } return config_term_common(attr, term, err); } #ifdef HAVE_LIBTRACEEVENT static int config_term_tracepoint(struct perf_event_attr *attr, struct parse_events_term *term, struct parse_events_error *err) { switch (term->type_term) { case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: case PARSE_EVENTS__TERM_TYPE_STACKSIZE: case PARSE_EVENTS__TERM_TYPE_INHERIT: case PARSE_EVENTS__TERM_TYPE_NOINHERIT: case PARSE_EVENTS__TERM_TYPE_MAX_STACK: case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: case PARSE_EVENTS__TERM_TYPE_OVERWRITE: case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: return config_term_common(attr, term, err); case PARSE_EVENTS__TERM_TYPE_USER: case PARSE_EVENTS__TERM_TYPE_CONFIG: case PARSE_EVENTS__TERM_TYPE_CONFIG1: case PARSE_EVENTS__TERM_TYPE_CONFIG2: case PARSE_EVENTS__TERM_TYPE_CONFIG3: case PARSE_EVENTS__TERM_TYPE_NAME: case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: case PARSE_EVENTS__TERM_TYPE_TIME: case PARSE_EVENTS__TERM_TYPE_DRV_CFG: case PARSE_EVENTS__TERM_TYPE_PERCORE: case PARSE_EVENTS__TERM_TYPE_METRIC_ID: case PARSE_EVENTS__TERM_TYPE_RAW: case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE: case PARSE_EVENTS__TERM_TYPE_HARDWARE: default: if (err) { parse_events_error__handle(err, term->err_term, strdup(config_term_name(term->type_term)), strdup("valid terms: call-graph,stack-size\n")); } return -EINVAL; } return 0; } #endif static int config_attr(struct perf_event_attr *attr, struct parse_events_terms *head, struct parse_events_error *err, config_term_func_t config_term) { struct parse_events_term *term; list_for_each_entry(term, &head->terms, list) if (config_term(attr, term, err)) return -EINVAL; return 0; } static int get_config_terms(struct parse_events_terms *head_config, struct list_head *head_terms) { #define ADD_CONFIG_TERM(__type, __weak) \ struct evsel_config_term *__t; \ \ __t = zalloc(sizeof(*__t)); \ if (!__t) \ return -ENOMEM; \ \ INIT_LIST_HEAD(&__t->list); \ __t->type = EVSEL__CONFIG_TERM_ ## __type; \ __t->weak = __weak; \ list_add_tail(&__t->list, head_terms) #define ADD_CONFIG_TERM_VAL(__type, __name, __val, __weak) \ do { \ ADD_CONFIG_TERM(__type, __weak); \ __t->val.__name = __val; \ } while (0) #define ADD_CONFIG_TERM_STR(__type, __val, __weak) \ do { \ ADD_CONFIG_TERM(__type, __weak); \ __t->val.str = strdup(__val); \ if (!__t->val.str) { \ zfree(&__t); \ return -ENOMEM; \ } \ __t->free_str = true; \ } while (0) struct parse_events_term *term; list_for_each_entry(term, &head_config->terms, list) { switch (term->type_term) { case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: ADD_CONFIG_TERM_VAL(PERIOD, period, term->val.num, term->weak); break; case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: ADD_CONFIG_TERM_VAL(FREQ, freq, term->val.num, term->weak); break; case PARSE_EVENTS__TERM_TYPE_TIME: ADD_CONFIG_TERM_VAL(TIME, time, term->val.num, term->weak); break; case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: ADD_CONFIG_TERM_STR(CALLGRAPH, term->val.str, term->weak); break; case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: ADD_CONFIG_TERM_STR(BRANCH, term->val.str, term->weak); break; case PARSE_EVENTS__TERM_TYPE_STACKSIZE: ADD_CONFIG_TERM_VAL(STACK_USER, stack_user, term->val.num, term->weak); break; case PARSE_EVENTS__TERM_TYPE_INHERIT: ADD_CONFIG_TERM_VAL(INHERIT, inherit, term->val.num ? 1 : 0, term->weak); break; case PARSE_EVENTS__TERM_TYPE_NOINHERIT: ADD_CONFIG_TERM_VAL(INHERIT, inherit, term->val.num ? 0 : 1, term->weak); break; case PARSE_EVENTS__TERM_TYPE_MAX_STACK: ADD_CONFIG_TERM_VAL(MAX_STACK, max_stack, term->val.num, term->weak); break; case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: ADD_CONFIG_TERM_VAL(MAX_EVENTS, max_events, term->val.num, term->weak); break; case PARSE_EVENTS__TERM_TYPE_OVERWRITE: ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite, term->val.num ? 1 : 0, term->weak); break; case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite, term->val.num ? 0 : 1, term->weak); break; case PARSE_EVENTS__TERM_TYPE_DRV_CFG: ADD_CONFIG_TERM_STR(DRV_CFG, term->val.str, term->weak); break; case PARSE_EVENTS__TERM_TYPE_PERCORE: ADD_CONFIG_TERM_VAL(PERCORE, percore, term->val.num ? true : false, term->weak); break; case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output, term->val.num ? 1 : 0, term->weak); break; case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size, term->val.num, term->weak); break; case PARSE_EVENTS__TERM_TYPE_USER: case PARSE_EVENTS__TERM_TYPE_CONFIG: case PARSE_EVENTS__TERM_TYPE_CONFIG1: case PARSE_EVENTS__TERM_TYPE_CONFIG2: case PARSE_EVENTS__TERM_TYPE_CONFIG3: case PARSE_EVENTS__TERM_TYPE_NAME: case PARSE_EVENTS__TERM_TYPE_METRIC_ID: case PARSE_EVENTS__TERM_TYPE_RAW: case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE: case PARSE_EVENTS__TERM_TYPE_HARDWARE: default: break; } } return 0; } /* * Add EVSEL__CONFIG_TERM_CFG_CHG where cfg_chg will have a bit set for * each bit of attr->config that the user has changed. */ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head_config, struct list_head *head_terms) { struct parse_events_term *term; u64 bits = 0; int type; list_for_each_entry(term, &head_config->terms, list) { switch (term->type_term) { case PARSE_EVENTS__TERM_TYPE_USER: type = perf_pmu__format_type(pmu, term->config); if (type != PERF_PMU_FORMAT_VALUE_CONFIG) continue; bits |= perf_pmu__format_bits(pmu, term->config); break; case PARSE_EVENTS__TERM_TYPE_CONFIG: bits = ~(u64)0; break; case PARSE_EVENTS__TERM_TYPE_CONFIG1: case PARSE_EVENTS__TERM_TYPE_CONFIG2: case PARSE_EVENTS__TERM_TYPE_CONFIG3: case PARSE_EVENTS__TERM_TYPE_NAME: case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: case PARSE_EVENTS__TERM_TYPE_TIME: case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: case PARSE_EVENTS__TERM_TYPE_STACKSIZE: case PARSE_EVENTS__TERM_TYPE_NOINHERIT: case PARSE_EVENTS__TERM_TYPE_INHERIT: case PARSE_EVENTS__TERM_TYPE_MAX_STACK: case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: case PARSE_EVENTS__TERM_TYPE_OVERWRITE: case PARSE_EVENTS__TERM_TYPE_DRV_CFG: case PARSE_EVENTS__TERM_TYPE_PERCORE: case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: case PARSE_EVENTS__TERM_TYPE_METRIC_ID: case PARSE_EVENTS__TERM_TYPE_RAW: case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE: case PARSE_EVENTS__TERM_TYPE_HARDWARE: default: break; } } if (bits) ADD_CONFIG_TERM_VAL(CFG_CHG, cfg_chg, bits, false); #undef ADD_CONFIG_TERM return 0; } int parse_events_add_tracepoint(struct list_head *list, int *idx, const char *sys, const char *event, struct parse_events_error *err, struct parse_events_terms *head_config, void *loc_) { YYLTYPE *loc = loc_; #ifdef HAVE_LIBTRACEEVENT if (head_config) { struct perf_event_attr attr; if (config_attr(&attr, head_config, err, config_term_tracepoint)) return -EINVAL; } if (strpbrk(sys, "*?")) return add_tracepoint_multi_sys(list, idx, sys, event, err, head_config, loc); else return add_tracepoint_event(list, idx, sys, event, err, head_config, loc); #else (void)list; (void)idx; (void)sys; (void)event; (void)head_config; parse_events_error__handle(err, loc->first_column, strdup("unsupported tracepoint"), strdup("libtraceevent is necessary for tracepoint support")); return -1; #endif } static int __parse_events_add_numeric(struct parse_events_state *parse_state, struct list_head *list, struct perf_pmu *pmu, u32 type, u32 extended_type, u64 config, struct parse_events_terms *head_config) { struct perf_event_attr attr; LIST_HEAD(config_terms); const char *name, *metric_id; int ret; memset(&attr, 0, sizeof(attr)); attr.type = type; attr.config = config; if (extended_type && (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE)) { assert(perf_pmus__supports_extended_type()); attr.config |= (u64)extended_type << PERF_PMU_TYPE_SHIFT; } if (head_config) { if (config_attr(&attr, head_config, parse_state->error, config_term_common)) return -EINVAL; if (get_config_terms(head_config, &config_terms)) return -ENOMEM; } name = get_config_name(head_config); metric_id = get_config_metric_id(head_config); ret = __add_event(list, &parse_state->idx, &attr, /*init_attr*/true, name, metric_id, pmu, &config_terms, /*auto_merge_stats=*/false, /*cpu_list=*/NULL) ? 0 : -ENOMEM; free_config_terms(&config_terms); return ret; } int parse_events_add_numeric(struct parse_events_state *parse_state, struct list_head *list, u32 type, u64 config, struct parse_events_terms *head_config, bool wildcard) { struct perf_pmu *pmu = NULL; bool found_supported = false; /* Wildcards on numeric values are only supported by core PMUs. */ if (wildcard && perf_pmus__supports_extended_type()) { while ((pmu = perf_pmus__scan_core(pmu)) != NULL) { int ret; found_supported = true; if (parse_events__filter_pmu(parse_state, pmu)) continue; ret = __parse_events_add_numeric(parse_state, list, pmu, type, pmu->type, config, head_config); if (ret) return ret; } if (found_supported) return 0; } return __parse_events_add_numeric(parse_state, list, perf_pmus__find_by_type(type), type, /*extended_type=*/0, config, head_config); } int parse_events_add_tool(struct parse_events_state *parse_state, struct list_head *list, int tool_event) { return add_event_tool(list, &parse_state->idx, tool_event); } static bool config_term_percore(struct list_head *config_terms) { struct evsel_config_term *term; list_for_each_entry(term, config_terms, list) { if (term->type == EVSEL__CONFIG_TERM_PERCORE) return term->val.percore; } return false; } int parse_events_add_pmu(struct parse_events_state *parse_state, struct list_head *list, const char *name, const struct parse_events_terms *const_parsed_terms, bool auto_merge_stats, void *loc_) { struct perf_event_attr attr; struct perf_pmu_info info; struct perf_pmu *pmu; struct evsel *evsel; struct parse_events_error *err = parse_state->error; YYLTYPE *loc = loc_; LIST_HEAD(config_terms); struct parse_events_terms parsed_terms; bool alias_rewrote_terms = false; pmu = parse_state->fake_pmu ?: perf_pmus__find(name); if (!pmu) { char *err_str; if (asprintf(&err_str, "Cannot find PMU `%s'. Missing kernel support?", name) >= 0) parse_events_error__handle(err, loc->first_column, err_str, NULL); return -EINVAL; } parse_events_terms__init(&parsed_terms); if (const_parsed_terms) { int ret = parse_events_terms__copy(const_parsed_terms, &parsed_terms); if (ret) return ret; } if (verbose > 1) { struct strbuf sb; strbuf_init(&sb, /*hint=*/ 0); if (pmu->selectable && list_empty(&parsed_terms.terms)) { strbuf_addf(&sb, "%s//", name); } else { strbuf_addf(&sb, "%s/", name); parse_events_terms__to_strbuf(&parsed_terms, &sb); strbuf_addch(&sb, '/'); } fprintf(stderr, "Attempt to add: %s\n", sb.buf); strbuf_release(&sb); } fix_raw(&parsed_terms, pmu); memset(&attr, 0, sizeof(attr)); if (pmu->perf_event_attr_init_default) pmu->perf_event_attr_init_default(pmu, &attr); attr.type = pmu->type; if (list_empty(&parsed_terms.terms)) { evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true, /*name=*/NULL, /*metric_id=*/NULL, pmu, /*config_terms=*/NULL, auto_merge_stats, /*cpu_list=*/NULL); return evsel ? 0 : -ENOMEM; } /* Configure attr/terms with a known PMU, this will set hardcoded terms. */ if (config_attr(&attr, &parsed_terms, parse_state->error, config_term_pmu)) { parse_events_terms__exit(&parsed_terms); return -EINVAL; } /* Look for event names in the terms and rewrite into format based terms. */ if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, &parsed_terms, &info, &alias_rewrote_terms, err)) { parse_events_terms__exit(&parsed_terms); return -EINVAL; } if (verbose > 1) { struct strbuf sb; strbuf_init(&sb, /*hint=*/ 0); parse_events_terms__to_strbuf(&parsed_terms, &sb); fprintf(stderr, "..after resolving event: %s/%s/\n", name, sb.buf); strbuf_release(&sb); } /* Configure attr/terms again if an alias was expanded. */ if (alias_rewrote_terms && config_attr(&attr, &parsed_terms, parse_state->error, config_term_pmu)) { parse_events_terms__exit(&parsed_terms); return -EINVAL; } if (get_config_terms(&parsed_terms, &config_terms)) { parse_events_terms__exit(&parsed_terms); return -ENOMEM; } /* * When using default config, record which bits of attr->config were * changed by the user. */ if (pmu->perf_event_attr_init_default && get_config_chgs(pmu, &parsed_terms, &config_terms)) { parse_events_terms__exit(&parsed_terms); return -ENOMEM; } if (!parse_state->fake_pmu && perf_pmu__config(pmu, &attr, &parsed_terms, parse_state->error)) { free_config_terms(&config_terms); parse_events_terms__exit(&parsed_terms); return -EINVAL; } evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true, get_config_name(&parsed_terms), get_config_metric_id(&parsed_terms), pmu, &config_terms, auto_merge_stats, /*cpu_list=*/NULL); if (!evsel) { parse_events_terms__exit(&parsed_terms); return -ENOMEM; } if (evsel->name) evsel->use_config_name = true; evsel->percore = config_term_percore(&evsel->config_terms); if (parse_state->fake_pmu) { parse_events_terms__exit(&parsed_terms); return 0; } parse_events_terms__exit(&parsed_terms); free((char *)evsel->unit); evsel->unit = strdup(info.unit); evsel->scale = info.scale; evsel->per_pkg = info.per_pkg; evsel->snapshot = info.snapshot; return 0; } int parse_events_multi_pmu_add(struct parse_events_state *parse_state, const char *event_name, const struct parse_events_terms *const_parsed_terms, struct list_head **listp, void *loc_) { struct parse_events_term *term; struct list_head *list = NULL; struct perf_pmu *pmu = NULL; YYLTYPE *loc = loc_; int ok = 0; const char *config; struct parse_events_terms parsed_terms; *listp = NULL; parse_events_terms__init(&parsed_terms); if (const_parsed_terms) { int ret = parse_events_terms__copy(const_parsed_terms, &parsed_terms); if (ret) return ret; } config = strdup(event_name); if (!config) goto out_err; if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, config, /*num=*/1, /*novalue=*/true, loc, /*loc_val=*/NULL) < 0) { zfree(&config); goto out_err; } list_add_tail(&term->list, &parsed_terms.terms); /* Add it for all PMUs that support the alias */ list = malloc(sizeof(struct list_head)); if (!list) goto out_err; INIT_LIST_HEAD(list); while ((pmu = perf_pmus__scan(pmu)) != NULL) { bool auto_merge_stats; if (parse_events__filter_pmu(parse_state, pmu)) continue; if (!perf_pmu__have_event(pmu, event_name)) continue; auto_merge_stats = perf_pmu__auto_merge_stats(pmu); if (!parse_events_add_pmu(parse_state, list, pmu->name, &parsed_terms, auto_merge_stats, loc)) { struct strbuf sb; strbuf_init(&sb, /*hint=*/ 0); parse_events_terms__to_strbuf(&parsed_terms, &sb); pr_debug("%s -> %s/%s/\n", event_name, pmu->name, sb.buf); strbuf_release(&sb); ok++; } } if (parse_state->fake_pmu) { if (!parse_events_add_pmu(parse_state, list, event_name, &parsed_terms, /*auto_merge_stats=*/true, loc)) { struct strbuf sb; strbuf_init(&sb, /*hint=*/ 0); parse_events_terms__to_strbuf(&parsed_terms, &sb); pr_debug("%s -> %s/%s/\n", event_name, "fake_pmu", sb.buf); strbuf_release(&sb); ok++; } } out_err: parse_events_terms__exit(&parsed_terms); if (ok) *listp = list; else free(list); return ok ? 0 : -1; } int parse_events__modifier_group(struct list_head *list, char *event_mod) { return parse_events__modifier_event(list, event_mod, true); } void parse_events__set_leader(char *name, struct list_head *list) { struct evsel *leader; if (list_empty(list)) { WARN_ONCE(true, "WARNING: failed to set leader: empty list"); return; } leader = list_first_entry(list, struct evsel, core.node); __perf_evlist__set_leader(list, &leader->core); leader->group_name = name; } /* list_event is assumed to point to malloc'ed memory */ void parse_events_update_lists(struct list_head *list_event, struct list_head *list_all) { /* * Called for single event definition. Update the * 'all event' list, and reinit the 'single event' * list, for next event definition. */ list_splice_tail(list_event, list_all); free(list_event); } struct event_modifier { int eu; int ek; int eh; int eH; int eG; int eI; int precise; int precise_max; int exclude_GH; int sample_read; int pinned; int weak; int exclusive; int bpf_counter; }; static int get_event_modifier(struct event_modifier *mod, char *str, struct evsel *evsel) { int eu = evsel ? evsel->core.attr.exclude_user : 0; int ek = evsel ? evsel->core.attr.exclude_kernel : 0; int eh = evsel ? evsel->core.attr.exclude_hv : 0; int eH = evsel ? evsel->core.attr.exclude_host : 0; int eG = evsel ? evsel->core.attr.exclude_guest : 0; int eI = evsel ? evsel->core.attr.exclude_idle : 0; int precise = evsel ? evsel->core.attr.precise_ip : 0; int precise_max = 0; int sample_read = 0; int pinned = evsel ? evsel->core.attr.pinned : 0; int exclusive = evsel ? evsel->core.attr.exclusive : 0; int exclude = eu | ek | eh; int exclude_GH = evsel ? evsel->exclude_GH : 0; int weak = 0; int bpf_counter = 0; memset(mod, 0, sizeof(*mod)); while (*str) { if (*str == 'u') { if (!exclude) exclude = eu = ek = eh = 1; if (!exclude_GH && !perf_guest) eG = 1; eu = 0; } else if (*str == 'k') { if (!exclude) exclude = eu = ek = eh = 1; ek = 0; } else if (*str == 'h') { if (!exclude) exclude = eu = ek = eh = 1; eh = 0; } else if (*str == 'G') { if (!exclude_GH) exclude_GH = eG = eH = 1; eG = 0; } else if (*str == 'H') { if (!exclude_GH) exclude_GH = eG = eH = 1; eH = 0; } else if (*str == 'I') { eI = 1; } else if (*str == 'p') { precise++; /* use of precise requires exclude_guest */ if (!exclude_GH) eG = 1; } else if (*str == 'P') { precise_max = 1; } else if (*str == 'S') { sample_read = 1; } else if (*str == 'D') { pinned = 1; } else if (*str == 'e') { exclusive = 1; } else if (*str == 'W') { weak = 1; } else if (*str == 'b') { bpf_counter = 1; } else break; ++str; } /* * precise ip: * * 0 - SAMPLE_IP can have arbitrary skid * 1 - SAMPLE_IP must have constant skid * 2 - SAMPLE_IP requested to have 0 skid * 3 - SAMPLE_IP must have 0 skid * * See also PERF_RECORD_MISC_EXACT_IP */ if (precise > 3) return -EINVAL; mod->eu = eu; mod->ek = ek; mod->eh = eh; mod->eH = eH; mod->eG = eG; mod->eI = eI; mod->precise = precise; mod->precise_max = precise_max; mod->exclude_GH = exclude_GH; mod->sample_read = sample_read; mod->pinned = pinned; mod->weak = weak; mod->bpf_counter = bpf_counter; mod->exclusive = exclusive; return 0; } /* * Basic modifier sanity check to validate it contains only one * instance of any modifier (apart from 'p') present. */ static int check_modifier(char *str) { char *p = str; /* The sizeof includes 0 byte as well. */ if (strlen(str) > (sizeof("ukhGHpppPSDIWeb") - 1)) return -1; while (*p) { if (*p != 'p' && strchr(p + 1, *p)) return -1; p++; } return 0; } int parse_events__modifier_event(struct list_head *list, char *str, bool add) { struct evsel *evsel; struct event_modifier mod; if (str == NULL) return 0; if (check_modifier(str)) return -EINVAL; if (!add && get_event_modifier(&mod, str, NULL)) return -EINVAL; __evlist__for_each_entry(list, evsel) { if (add && get_event_modifier(&mod, str, evsel)) return -EINVAL; evsel->core.attr.exclude_user = mod.eu; evsel->core.attr.exclude_kernel = mod.ek; evsel->core.attr.exclude_hv = mod.eh; evsel->core.attr.precise_ip = mod.precise; evsel->core.attr.exclude_host = mod.eH; evsel->core.attr.exclude_guest = mod.eG; evsel->core.attr.exclude_idle = mod.eI; evsel->exclude_GH = mod.exclude_GH; evsel->sample_read = mod.sample_read; evsel->precise_max = mod.precise_max; evsel->weak_group = mod.weak; evsel->bpf_counter = mod.bpf_counter; if (evsel__is_group_leader(evsel)) { evsel->core.attr.pinned = mod.pinned; evsel->core.attr.exclusive = mod.exclusive; } } return 0; } int parse_events_name(struct list_head *list, const char *name) { struct evsel *evsel; __evlist__for_each_entry(list, evsel) { if (!evsel->name) { evsel->name = strdup(name); if (!evsel->name) return -ENOMEM; } } return 0; } static int parse_events__scanner(const char *str, FILE *input, struct parse_events_state *parse_state) { YY_BUFFER_STATE buffer; void *scanner; int ret; ret = parse_events_lex_init_extra(parse_state, &scanner); if (ret) return ret; if (str) buffer = parse_events__scan_string(str, scanner); else parse_events_set_in(input, scanner); #ifdef PARSER_DEBUG parse_events_debug = 1; parse_events_set_debug(1, scanner); #endif ret = parse_events_parse(parse_state, scanner); if (str) { parse_events__flush_buffer(buffer, scanner); parse_events__delete_buffer(buffer, scanner); } parse_events_lex_destroy(scanner); return ret; } /* * parse event config string, return a list of event terms. */ int parse_events_terms(struct parse_events_terms *terms, const char *str, FILE *input) { struct parse_events_state parse_state = { .terms = NULL, .stoken = PE_START_TERMS, }; int ret; ret = parse_events__scanner(str, input, &parse_state); if (!ret) list_splice(&parse_state.terms->terms, &terms->terms); zfree(&parse_state.terms); return ret; } static int evsel__compute_group_pmu_name(struct evsel *evsel, const struct list_head *head) { struct evsel *leader = evsel__leader(evsel); struct evsel *pos; const char *group_pmu_name; struct perf_pmu *pmu = evsel__find_pmu(evsel); if (!pmu) { /* * For PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE types the PMU * is a core PMU, but in heterogeneous systems this is * unknown. For now pick the first core PMU. */ pmu = perf_pmus__scan_core(NULL); } if (!pmu) { pr_debug("No PMU found for '%s'\n", evsel__name(evsel)); return -EINVAL; } group_pmu_name = pmu->name; /* * Software events may be in a group with other uncore PMU events. Use * the pmu_name of the first non-software event to avoid breaking the * software event out of the group. * * Aux event leaders, like intel_pt, expect a group with events from * other PMUs, so substitute the AUX event's PMU in this case. */ if (perf_pmu__is_software(pmu) || evsel__is_aux_event(leader)) { struct perf_pmu *leader_pmu = evsel__find_pmu(leader); if (!leader_pmu) { /* As with determining pmu above. */ leader_pmu = perf_pmus__scan_core(NULL); } /* * Starting with the leader, find the first event with a named * non-software PMU. for_each_group_(member|evsel) isn't used as * the list isn't yet sorted putting evsel's in the same group * together. */ if (leader_pmu && !perf_pmu__is_software(leader_pmu)) { group_pmu_name = leader_pmu->name; } else if (leader->core.nr_members > 1) { list_for_each_entry(pos, head, core.node) { struct perf_pmu *pos_pmu; if (pos == leader || evsel__leader(pos) != leader) continue; pos_pmu = evsel__find_pmu(pos); if (!pos_pmu) { /* As with determining pmu above. */ pos_pmu = perf_pmus__scan_core(NULL); } if (pos_pmu && !perf_pmu__is_software(pos_pmu)) { group_pmu_name = pos_pmu->name; break; } } } } /* Assign the actual name taking care that the fake PMU lacks a name. */ evsel->group_pmu_name = strdup(group_pmu_name ?: "fake"); return evsel->group_pmu_name ? 0 : -ENOMEM; } __weak int arch_evlist__cmp(const struct evsel *lhs, const struct evsel *rhs) { /* Order by insertion index. */ return lhs->core.idx - rhs->core.idx; } static int evlist__cmp(void *_fg_idx, const struct list_head *l, const struct list_head *r) { const struct perf_evsel *lhs_core = container_of(l, struct perf_evsel, node); const struct evsel *lhs = container_of(lhs_core, struct evsel, core); const struct perf_evsel *rhs_core = container_of(r, struct perf_evsel, node); const struct evsel *rhs = container_of(rhs_core, struct evsel, core); int *force_grouped_idx = _fg_idx; int lhs_sort_idx, rhs_sort_idx, ret; const char *lhs_pmu_name, *rhs_pmu_name; bool lhs_has_group, rhs_has_group; /* * First sort by grouping/leader. Read the leader idx only if the evsel * is part of a group, by default ungrouped events will be sorted * relative to grouped events based on where the first ungrouped event * occurs. If both events don't have a group we want to fall-through to * the arch specific sorting, that can reorder and fix things like * Intel's topdown events. */ if (lhs_core->leader != lhs_core || lhs_core->nr_members > 1) { lhs_has_group = true; lhs_sort_idx = lhs_core->leader->idx; } else { lhs_has_group = false; lhs_sort_idx = *force_grouped_idx != -1 && arch_evsel__must_be_in_group(lhs) ? *force_grouped_idx : lhs_core->idx; } if (rhs_core->leader != rhs_core || rhs_core->nr_members > 1) { rhs_has_group = true; rhs_sort_idx = rhs_core->leader->idx; } else { rhs_has_group = false; rhs_sort_idx = *force_grouped_idx != -1 && arch_evsel__must_be_in_group(rhs) ? *force_grouped_idx : rhs_core->idx; } if (lhs_sort_idx != rhs_sort_idx) return lhs_sort_idx - rhs_sort_idx; /* Group by PMU if there is a group. Groups can't span PMUs. */ if (lhs_has_group && rhs_has_group) { lhs_pmu_name = lhs->group_pmu_name; rhs_pmu_name = rhs->group_pmu_name; ret = strcmp(lhs_pmu_name, rhs_pmu_name); if (ret) return ret; } /* Architecture specific sorting. */ return arch_evlist__cmp(lhs, rhs); } static int parse_events__sort_events_and_fix_groups(struct list_head *list) { int idx = 0, force_grouped_idx = -1; struct evsel *pos, *cur_leader = NULL; struct perf_evsel *cur_leaders_grp = NULL; bool idx_changed = false, cur_leader_force_grouped = false; int orig_num_leaders = 0, num_leaders = 0; int ret; /* * Compute index to insert ungrouped events at. Place them where the * first ungrouped event appears. */ list_for_each_entry(pos, list, core.node) { const struct evsel *pos_leader = evsel__leader(pos); ret = evsel__compute_group_pmu_name(pos, list); if (ret) return ret; if (pos == pos_leader) orig_num_leaders++; /* * Ensure indexes are sequential, in particular for multiple * event lists being merged. The indexes are used to detect when * the user order is modified. */ pos->core.idx = idx++; /* Remember an index to sort all forced grouped events together to. */ if (force_grouped_idx == -1 && pos == pos_leader && pos->core.nr_members < 2 && arch_evsel__must_be_in_group(pos)) force_grouped_idx = pos->core.idx; } /* Sort events. */ list_sort(&force_grouped_idx, list, evlist__cmp); /* * Recompute groups, splitting for PMUs and adding groups for events * that require them. */ idx = 0; list_for_each_entry(pos, list, core.node) { const struct evsel *pos_leader = evsel__leader(pos); const char *pos_pmu_name = pos->group_pmu_name; const char *cur_leader_pmu_name; bool pos_force_grouped = force_grouped_idx != -1 && arch_evsel__must_be_in_group(pos); /* Reset index and nr_members. */ if (pos->core.idx != idx) idx_changed = true; pos->core.idx = idx++; pos->core.nr_members = 0; /* * Set the group leader respecting the given groupings and that * groups can't span PMUs. */ if (!cur_leader) cur_leader = pos; cur_leader_pmu_name = cur_leader->group_pmu_name; if ((cur_leaders_grp != pos->core.leader && (!pos_force_grouped || !cur_leader_force_grouped)) || strcmp(cur_leader_pmu_name, pos_pmu_name)) { /* Event is for a different group/PMU than last. */ cur_leader = pos; /* * Remember the leader's group before it is overwritten, * so that later events match as being in the same * group. */ cur_leaders_grp = pos->core.leader; /* * Avoid forcing events into groups with events that * don't need to be in the group. */ cur_leader_force_grouped = pos_force_grouped; } if (pos_leader != cur_leader) { /* The leader changed so update it. */ evsel__set_leader(pos, cur_leader); } } list_for_each_entry(pos, list, core.node) { struct evsel *pos_leader = evsel__leader(pos); if (pos == pos_leader) num_leaders++; pos_leader->core.nr_members++; } return (idx_changed || num_leaders != orig_num_leaders) ? 1 : 0; } int __parse_events(struct evlist *evlist, const char *str, const char *pmu_filter, struct parse_events_error *err, struct perf_pmu *fake_pmu, bool warn_if_reordered) { struct parse_events_state parse_state = { .list = LIST_HEAD_INIT(parse_state.list), .idx = evlist->core.nr_entries, .error = err, .stoken = PE_START_EVENTS, .fake_pmu = fake_pmu, .pmu_filter = pmu_filter, .match_legacy_cache_terms = true, }; int ret, ret2; ret = parse_events__scanner(str, /*input=*/ NULL, &parse_state); if (!ret && list_empty(&parse_state.list)) { WARN_ONCE(true, "WARNING: event parser found nothing\n"); return -1; } ret2 = parse_events__sort_events_and_fix_groups(&parse_state.list); if (ret2 < 0) return ret; if (ret2 && warn_if_reordered && !parse_state.wild_card_pmus) pr_warning("WARNING: events were regrouped to match PMUs\n"); /* * Add list to the evlist even with errors to allow callers to clean up. */ evlist__splice_list_tail(evlist, &parse_state.list); if (!ret) { struct evsel *last; last = evlist__last(evlist); last->cmdline_group_boundary = true; return 0; } /* * There are 2 users - builtin-record and builtin-test objects. * Both call evlist__delete in case of error, so we dont * need to bother. */ return ret; } int parse_event(struct evlist *evlist, const char *str) { struct parse_events_error err; int ret; parse_events_error__init(&err); ret = parse_events(evlist, str, &err); parse_events_error__exit(&err); return ret; } struct parse_events_error_entry { /** @list: The list the error is part of. */ struct list_head list; /** @idx: index in the parsed string */ int idx; /** @str: string to display at the index */ char *str; /** @help: optional help string */ char *help; }; void parse_events_error__init(struct parse_events_error *err) { INIT_LIST_HEAD(&err->list); } void parse_events_error__exit(struct parse_events_error *err) { struct parse_events_error_entry *pos, *tmp; list_for_each_entry_safe(pos, tmp, &err->list, list) { zfree(&pos->str); zfree(&pos->help); list_del_init(&pos->list); free(pos); } } void parse_events_error__handle(struct parse_events_error *err, int idx, char *str, char *help) { struct parse_events_error_entry *entry; if (WARN(!str || !err, "WARNING: failed to provide error string or struct\n")) goto out_free; entry = zalloc(sizeof(*entry)); if (!entry) { pr_err("Failed to allocate memory for event parsing error: %s (%s)\n", str, help ?: "<no help>"); goto out_free; } entry->idx = idx; entry->str = str; entry->help = help; list_add(&entry->list, &err->list); return; out_free: free(str); free(help); } #define MAX_WIDTH 1000 static int get_term_width(void) { struct winsize ws; get_term_dimensions(&ws); return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col; } static void __parse_events_error__print(int err_idx, const char *err_str, const char *err_help, const char *event) { const char *str = "invalid or unsupported event: "; char _buf[MAX_WIDTH]; char *buf = (char *) event; int idx = 0; if (err_str) { /* -2 for extra '' in the final fprintf */ int width = get_term_width() - 2; int len_event = strlen(event); int len_str, max_len, cut = 0; /* * Maximum error index indent, we will cut * the event string if it's bigger. */ int max_err_idx = 13; /* * Let's be specific with the message when * we have the precise error. */ str = "event syntax error: "; len_str = strlen(str); max_len = width - len_str; buf = _buf; /* We're cutting from the beginning. */ if (err_idx > max_err_idx) cut = err_idx - max_err_idx; strncpy(buf, event + cut, max_len); /* Mark cut parts with '..' on both sides. */ if (cut) buf[0] = buf[1] = '.'; if ((len_event - cut) > max_len) { buf[max_len - 1] = buf[max_len - 2] = '.'; buf[max_len] = 0; } idx = len_str + err_idx - cut; } fprintf(stderr, "%s'%s'\n", str, buf); if (idx) { fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err_str); if (err_help) fprintf(stderr, "\n%s\n", err_help); } } void parse_events_error__print(const struct parse_events_error *err, const char *event) { struct parse_events_error_entry *pos; bool first = true; list_for_each_entry(pos, &err->list, list) { if (!first) fputs("\n", stderr); __parse_events_error__print(pos->idx, pos->str, pos->help, event); first = false; } } /* * In the list of errors err, do any of the error strings (str) contain the * given needle string? */ bool parse_events_error__contains(const struct parse_events_error *err, const char *needle) { struct parse_events_error_entry *pos; list_for_each_entry(pos, &err->list, list) { if (strstr(pos->str, needle) != NULL) return true; } return false; } #undef MAX_WIDTH int parse_events_option(const struct option *opt, const char *str, int unset __maybe_unused) { struct parse_events_option_args *args = opt->value; struct parse_events_error err; int ret; parse_events_error__init(&err); ret = __parse_events(*args->evlistp, str, args->pmu_filter, &err, /*fake_pmu=*/NULL, /*warn_if_reordered=*/true); if (ret) { parse_events_error__print(&err, str); fprintf(stderr, "Run 'perf list' for a list of valid events\n"); } parse_events_error__exit(&err); return ret; } int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset) { struct parse_events_option_args *args = opt->value; int ret; if (*args->evlistp == NULL) { *args->evlistp = evlist__new(); if (*args->evlistp == NULL) { fprintf(stderr, "Not enough memory to create evlist\n"); return -1; } } ret = parse_events_option(opt, str, unset); if (ret) { evlist__delete(*args->evlistp); *args->evlistp = NULL; } return ret; } static int foreach_evsel_in_last_glob(struct evlist *evlist, int (*func)(struct evsel *evsel, const void *arg), const void *arg) { struct evsel *last = NULL; int err; /* * Don't return when list_empty, give func a chance to report * error when it found last == NULL. * * So no need to WARN here, let *func do this. */ if (evlist->core.nr_entries > 0) last = evlist__last(evlist); do { err = (*func)(last, arg); if (err) return -1; if (!last) return 0; if (last->core.node.prev == &evlist->core.entries) return 0; last = list_entry(last->core.node.prev, struct evsel, core.node); } while (!last->cmdline_group_boundary); return 0; } static int set_filter(struct evsel *evsel, const void *arg) { const char *str = arg; bool found = false; int nr_addr_filters = 0; struct perf_pmu *pmu = NULL; if (evsel == NULL) { fprintf(stderr, "--filter option should follow a -e tracepoint or HW tracer option\n"); return -1; } if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) { if (evsel__append_tp_filter(evsel, str) < 0) { fprintf(stderr, "not enough memory to hold filter string\n"); return -1; } return 0; } while ((pmu = perf_pmus__scan(pmu)) != NULL) if (pmu->type == evsel->core.attr.type) { found = true; break; } if (found) perf_pmu__scan_file(pmu, "nr_addr_filters", "%d", &nr_addr_filters); if (!nr_addr_filters) return perf_bpf_filter__parse(&evsel->bpf_filters, str); if (evsel__append_addr_filter(evsel, str) < 0) { fprintf(stderr, "not enough memory to hold filter string\n"); return -1; } return 0; } int parse_filter(const struct option *opt, const char *str, int unset __maybe_unused) { struct evlist *evlist = *(struct evlist **)opt->value; return foreach_evsel_in_last_glob(evlist, set_filter, (const void *)str); } static int add_exclude_perf_filter(struct evsel *evsel, const void *arg __maybe_unused) { char new_filter[64]; if (evsel == NULL || evsel->core.attr.type != PERF_TYPE_TRACEPOINT) { fprintf(stderr, "--exclude-perf option should follow a -e tracepoint option\n"); return -1; } snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid()); if (evsel__append_tp_filter(evsel, new_filter) < 0) { fprintf(stderr, "not enough memory to hold filter string\n"); return -1; } return 0; } int exclude_perf(const struct option *opt, const char *arg __maybe_unused, int unset __maybe_unused) { struct evlist *evlist = *(struct evlist **)opt->value; return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter, NULL); } int parse_events__is_hardcoded_term(struct parse_events_term *term) { return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; } static int new_term(struct parse_events_term **_term, struct parse_events_term *temp, char *str, u64 num) { struct parse_events_term *term; term = malloc(sizeof(*term)); if (!term) return -ENOMEM; *term = *temp; INIT_LIST_HEAD(&term->list); term->weak = false; switch (term->type_val) { case PARSE_EVENTS__TERM_TYPE_NUM: term->val.num = num; break; case PARSE_EVENTS__TERM_TYPE_STR: term->val.str = str; break; default: free(term); return -EINVAL; } *_term = term; return 0; } int parse_events_term__num(struct parse_events_term **term, enum parse_events__term_type type_term, const char *config, u64 num, bool no_value, void *loc_term_, void *loc_val_) { YYLTYPE *loc_term = loc_term_; YYLTYPE *loc_val = loc_val_; struct parse_events_term temp = { .type_val = PARSE_EVENTS__TERM_TYPE_NUM, .type_term = type_term, .config = config ? : strdup(config_term_name(type_term)), .no_value = no_value, .err_term = loc_term ? loc_term->first_column : 0, .err_val = loc_val ? loc_val->first_column : 0, }; return new_term(term, &temp, /*str=*/NULL, num); } int parse_events_term__str(struct parse_events_term **term, enum parse_events__term_type type_term, char *config, char *str, void *loc_term_, void *loc_val_) { YYLTYPE *loc_term = loc_term_; YYLTYPE *loc_val = loc_val_; struct parse_events_term temp = { .type_val = PARSE_EVENTS__TERM_TYPE_STR, .type_term = type_term, .config = config, .err_term = loc_term ? loc_term->first_column : 0, .err_val = loc_val ? loc_val->first_column : 0, }; return new_term(term, &temp, str, /*num=*/0); } int parse_events_term__term(struct parse_events_term **term, enum parse_events__term_type term_lhs, enum parse_events__term_type term_rhs, void *loc_term, void *loc_val) { return parse_events_term__str(term, term_lhs, NULL, strdup(config_term_name(term_rhs)), loc_term, loc_val); } int parse_events_term__clone(struct parse_events_term **new, struct parse_events_term *term) { char *str; struct parse_events_term temp = *term; temp.used = false; if (term->config) { temp.config = strdup(term->config); if (!temp.config) return -ENOMEM; } if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) return new_term(new, &temp, /*str=*/NULL, term->val.num); str = strdup(term->val.str); if (!str) { zfree(&temp.config); return -ENOMEM; } return new_term(new, &temp, str, /*num=*/0); } void parse_events_term__delete(struct parse_events_term *term) { if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM) zfree(&term->val.str); zfree(&term->config); free(term); } static int parse_events_terms__copy(const struct parse_events_terms *src, struct parse_events_terms *dest) { struct parse_events_term *term; list_for_each_entry (term, &src->terms, list) { struct parse_events_term *n; int ret; ret = parse_events_term__clone(&n, term); if (ret) return ret; list_add_tail(&n->list, &dest->terms); } return 0; } void parse_events_terms__init(struct parse_events_terms *terms) { INIT_LIST_HEAD(&terms->terms); } void parse_events_terms__exit(struct parse_events_terms *terms) { struct parse_events_term *term, *h; list_for_each_entry_safe(term, h, &terms->terms, list) { list_del_init(&term->list); parse_events_term__delete(term); } } void parse_events_terms__delete(struct parse_events_terms *terms) { if (!terms) return; parse_events_terms__exit(terms); free(terms); } int parse_events_terms__to_strbuf(const struct parse_events_terms *terms, struct strbuf *sb) { struct parse_events_term *term; bool first = true; if (!terms) return 0; list_for_each_entry(term, &terms->terms, list) { int ret; if (!first) { ret = strbuf_addch(sb, ','); if (ret < 0) return ret; } first = false; if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) if (term->no_value) { assert(term->val.num == 1); ret = strbuf_addf(sb, "%s", term->config); } else ret = strbuf_addf(sb, "%s=%#"PRIx64, term->config, term->val.num); else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) { if (term->config) { ret = strbuf_addf(sb, "%s=", term->config); if (ret < 0) return ret; } else if ((unsigned int)term->type_term < __PARSE_EVENTS__TERM_TYPE_NR) { ret = strbuf_addf(sb, "%s=", config_term_name(term->type_term)); if (ret < 0) return ret; } assert(!term->no_value); ret = strbuf_addf(sb, "%s", term->val.str); } if (ret < 0) return ret; } return 0; } void parse_events_evlist_error(struct parse_events_state *parse_state, int idx, const char *str) { if (!parse_state->error) return; parse_events_error__handle(parse_state->error, idx, strdup(str), NULL); } static void config_terms_list(char *buf, size_t buf_sz) { int i; bool first = true; buf[0] = '\0'; for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) { const char *name = config_term_name(i); if (!config_term_avail(i, NULL)) continue; if (!name) continue; if (name[0] == '<') continue; if (strlen(buf) + strlen(name) + 2 >= buf_sz) return; if (!first) strcat(buf, ","); else first = false; strcat(buf, name); } } /* * Return string contains valid config terms of an event. * @additional_terms: For terms such as PMU sysfs terms. */ char *parse_events_formats_error_string(char *additional_terms) { char *str; /* "no-overwrite" is the longest name */ char static_terms[__PARSE_EVENTS__TERM_TYPE_NR * (sizeof("no-overwrite") - 1)]; config_terms_list(static_terms, sizeof(static_terms)); /* valid terms */ if (additional_terms) { if (asprintf(&str, "valid terms: %s,%s", additional_terms, static_terms) < 0) goto fail; } else { if (asprintf(&str, "valid terms: %s", static_terms) < 0) goto fail; } return str; fail: return NULL; }
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